﻿/**
 * This plug-in for DataTables represents the ultimate option in extensibility
 * for sorting date / time strings correctly. It uses
 * [Moment.js](http://momentjs.com) to create automatic type detection and
 * sorting plug-ins for DataTables based on a given format. This way, DataTables
 * will automatically detect your temporal information and sort it correctly.
 *
 * For usage instructions, please see the DataTables blog
 * post that [introduces it](//datatables.net/blog/2014-12-18).
 *
 * @name Ultimate Date / Time sorting
 * @summary Sort date and time in any format using Moment.js
 * @author [Allan Jardine](//datatables.net)
 * @depends DataTables 1.10+, Moment.js 1.7+
 *
 * @example
 *    $.fn.dataTable.moment( 'HH:mm MMM D, YY' );
 *    $.fn.dataTable.moment( 'dddd, MMMM Do, YYYY' );
 *
 *    $('#example').DataTable();
 */

(function ($) {

    $.fn.dataTable.moment = function (format, locale) {
        var types = $.fn.dataTable.ext.type;

        // Add type detection
        types.detect.unshift(function (d) {
            // Null and empty values are acceptable
            if (d === '' || d === null) {
                return 'moment-' + format;
            }

            return moment(d.replace ? d.replace(/<.*?>/g, '') : d, format, locale, true).isValid() ?
                'moment-' + format :
                null;
        });

        // Add sorting method - use an integer for the sorting
        types.order['moment-' + format + '-pre'] = function (d) {
            return d === '' || d === null ?
                -Infinity :
                parseInt(moment(d.replace ? d.replace(/<.*?>/g, '') : d, format, locale, true).format('x'), 10);
        };
    };

}(jQuery));